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- propyl thioether 二丙硫醚
- Aim:to prepare propyl p-hydroxybenzoate. 目的:制备对羟基苯甲酸丙酯。
- The 2,3-di(2,3-epoxypropyl thioethylthio)propyl 2,3-ep ox ypropyl thioether(TGEBES) was synthesized from epichlorohydrin(ECH) and 2,3-dim ercaproethylthio-propanethiol(BES) which was synthesized from ECH, thiolethanol and thiourea. 利用间接法以巯基乙醇和环氧氯丙烷 (ECH)为原料通过 3步反应得到 2 ;3 二 (2 ;3 环氧丙硫乙硫基 )丙基·2 ;3 环氧丙基硫醚型环氧树脂 (TGEBES) ;其折射率和环氧值分别达 1.;5 85 0和 0
- Propyl gallate known as a familiar antioxidant,is widely used in food industry. 没食子酸丙酯作为一种常见的抗氧化剂已被广泛应用于食品行业。
- OBJECTIVE To synthesize thiamine propyl disulfide,a long-effect VitaminB1. 目的合成长效维生素B1丙硫硫胺。
- In this paper a new synthesis of Trimethylol propyl triacrylate was introduced. 本文介绍了三羟甲基丙烷三丙烯酸酯新的合成方法。
- A series of various thioether moiety content PEEKK copolymers were synthesized through nucleophilic substitution route. 首先将通过亲核取代反应制备了一系列不同硫醚含量的聚合物,以及硫醚含量相同但连接方式不同的聚合物,结构表征证明这些聚合物具有相近的分子量。
- These peaks correspond to side-chain cleavage of the ethyl and propyl groups respectively. 这些峰分别相当于乙基和丙基的侧链开裂。
- Transform rates of thioether can arrive at 100% when the feed ratio of water to thioether is adeq... 当水足量时,硫醚脱硫率可达100%25,温度、压力、原料配比对平衡组成的影响很小。
- The results indicate that water needed by full aquathermolysis reaction increases with molecular weight of thioether. 计算结果表明:硫醚水热裂解反应所需的水蒸汽量随硫醚相对分子质量的增大而增多。
- The effect of reaction temperature of the formation on thioether dianhydride monomer was discussed. 讨论了温度对硫醚二酐形成的影响。
- A novel polyamic acid containing thioether segments with excellent thermal stability and transpanency was synthesized and characterized. 合成了一种具有耐高温、氧化稳定性及透明性的聚硫醚酰胺酸,并对各步中间产物进行了基本表征。
- The authors synthesized a new thioether compound whose molecular structure was identified by IR, MS and elementary analyses. 作者合成了新型的硫醚化合物,经元素分析、红外光谱和质谱分析,确证了化合物的分子结构。
- A monovalent radical,such as ethyl or propyl,having the general formula CnH2n+1. 烷基,烃基一种单价基,如乙烷基和丙基,分子式为CnH2n+
- A monovalent radical, such as ethyl or propyl, having the general formula CnH2n+1. 烷基,烃基一种单价基,如乙烷基和丙基,分子式为cnh2n+1
- Talc, Mica, Silica, Propyl paraben, Methyl paraben, Art-Pearl, Zinc stearate, Vitamin E, Squalane, Iron oxdied black. 滑石,云母,矽石,尼伯金丙酯,尼伯金甲酯,人工珍珠,硬酯酸锌,维生素E,角鲨烷,氧化铁黑。
- Talc, Mica, Silica, Propyl paraben, Methyl paraben, Art-Pearl, Zinc stearate, Vitamin E, Squalane. 滑石,云母,硅石,尼伯金丙酯,尼伯金甲酯,人工珍珠,硬酯酸锌,维生素E,角鲨烷。
- Sulfur compounds in Russian atmospheric gas oil were separated into thiophene and thioether compounds by the oxidation-reduction method using selective oxidant and reducing agent. 摘要采用选择性氧化剂和还原剂对俄罗斯直馏柴油中的硫醚类硫化物和噻吩类硫化物分别进行分离和富集,得到两者的浓缩液。
- A new processing method of propyl gallate was advanced in order to decrease the cost of production. 对常见的没食子酸丙酯提出一种尚未见报道的制备方法,可以大幅度地降低生产成本。